diff --git a/clitools/filters/kaleidoscope.py b/clitools/filters/kaleidoscope.py
index 5ca4396..8f874b3 100755
--- a/clitools/filters/kaleidoscope.py
+++ b/clitools/filters/kaleidoscope.py
@@ -162,8 +162,7 @@ try:
       pointsList = ast.literal_eval(line)
       # Do the filter
       result = kaleidoscope( pointsList ) 
-      print( result, flush=True )
-
+      if len(result) : print( result, flush=True )
       looptime = time.time() - start
       # debug(name+" looptime:"+str(looptime))
       if( looptime < optimal_looptime ):